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Tobias Wood
2023-11-29 11:12:48 +00:00
parent 9ea520fc45
commit f38e16c193
534 changed files with 103368 additions and 116934 deletions
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66
Eigen/src/SparseLU/SparseLU_Structs.h
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@@ -7,26 +7,26 @@
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
/*
/*
* NOTE: This file comes from a partly modified version of files slu_[s,d,c,z]defs.h
* -- SuperLU routine (version 4.1) --
* Univ. of California Berkeley, Xerox Palo Alto Research Center,
* and Lawrence Berkeley National Lab.
* November, 2010
*
*
* Global data structures used in LU factorization -
*
*
* nsuper: #supernodes = nsuper + 1, numbered [0, nsuper].
* (xsup,supno): supno[i] is the supernode no to which i belongs;
* xsup(s) points to the beginning of the s-th supernode.
* e.g. supno 0 1 2 2 3 3 3 4 4 4 4 4 (n=12)
* xsup 0 1 2 4 7 12
* Note: dfs will be performed on supernode rep. relative to the new
* Note: dfs will be performed on supernode rep. relative to the new
* row pivoting ordering
*
* (xlsub,lsub): lsub[*] contains the compressed subscript of
* rectangular supernodes; xlsub[j] points to the starting
* location of the j-th column in lsub[*]. Note that xlsub
* location of the j-th column in lsub[*]. Note that xlsub
* is indexed by column.
* Storage: original row subscripts
*
@@ -74,40 +74,40 @@
namespace Eigen {
namespace internal {
enum MemType {LUSUP, UCOL, LSUB, USUB, LLVL, ULVL};
enum MemType { LUSUP, UCOL, LSUB, USUB, LLVL, ULVL };
template <typename IndexVector, typename ScalarVector>
struct LU_GlobalLU_t {
typedef typename IndexVector::Scalar StorageIndex;
IndexVector xsup; //First supernode column ... xsup(s) points to the beginning of the s-th supernode
IndexVector supno; // Supernode number corresponding to this column (column to supernode mapping)
ScalarVector lusup; // nonzero values of L ordered by columns
IndexVector lsub; // Compressed row indices of L rectangular supernodes.
IndexVector xlusup; // pointers to the beginning of each column in lusup
IndexVector xlsub; // pointers to the beginning of each column in lsub
Index nzlmax; // Current max size of lsub
Index nzlumax; // Current max size of lusup
ScalarVector ucol; // nonzero values of U ordered by columns
IndexVector usub; // row indices of U columns in ucol
IndexVector xusub; // Pointers to the beginning of each column of U in ucol
Index nzumax; // Current max size of ucol
Index n; // Number of columns in the matrix
Index num_expansions;
typedef typename IndexVector::Scalar StorageIndex;
IndexVector xsup; // First supernode column ... xsup(s) points to the beginning of the s-th supernode
IndexVector supno; // Supernode number corresponding to this column (column to supernode mapping)
ScalarVector lusup; // nonzero values of L ordered by columns
IndexVector lsub; // Compressed row indices of L rectangular supernodes.
IndexVector xlusup; // pointers to the beginning of each column in lusup
IndexVector xlsub; // pointers to the beginning of each column in lsub
Index nzlmax; // Current max size of lsub
Index nzlumax; // Current max size of lusup
ScalarVector ucol; // nonzero values of U ordered by columns
IndexVector usub; // row indices of U columns in ucol
IndexVector xusub; // Pointers to the beginning of each column of U in ucol
Index nzumax; // Current max size of ucol
Index n; // Number of columns in the matrix
Index num_expansions;
};
// Values to set for performance
struct perfvalues {
Index panel_size; // a panel consists of at most <panel_size> consecutive columns
Index relax; // To control degree of relaxing supernodes. If the number of nodes (columns)
// in a subtree of the elimination tree is less than relax, this subtree is considered
// as one supernode regardless of the row structures of those columns
Index maxsuper; // The maximum size for a supernode in complete LU
Index rowblk; // The minimum row dimension for 2-D blocking to be used;
Index colblk; // The minimum column dimension for 2-D blocking to be used;
Index fillfactor; // The estimated fills factors for L and U, compared with A
};
Index panel_size; // a panel consists of at most <panel_size> consecutive columns
Index relax; // To control degree of relaxing supernodes. If the number of nodes (columns)
// in a subtree of the elimination tree is less than relax, this subtree is considered
// as one supernode regardless of the row structures of those columns
Index maxsuper; // The maximum size for a supernode in complete LU
Index rowblk; // The minimum row dimension for 2-D blocking to be used;
Index colblk; // The minimum column dimension for 2-D blocking to be used;
Index fillfactor; // The estimated fills factors for L and U, compared with A
};
} // end namespace internal
} // end namespace internal
} // end namespace Eigen
#endif // EIGEN_LU_STRUCTS
} // end namespace Eigen
#endif // EIGEN_LU_STRUCTS